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人教社义务教育教材《化学》中氢气的制取和性质实验，由于锌粒和稀硫酸的用量较少，学生操作不熟练，检验H２纯度的操作停留时间较长，造成氢气量不足，影响点燃和还原CuO性质的实验，中途又要重新加药品，验纯、点燃和还原CuO，实验效果不佳，成功率较低，影响学生学化学的兴
The preparation and nature experiment of hydrogen in the “Chemical” textbook of the compulsory education textbook of the People’s Education Society shows that due to the small amount of zinc particles and dilute sulfuric acid, the students are not skilled in the operation, and the operation residence time for testing the purity of H2 is long, resulting in insufficient amount of hydrogen gas. The experiment of igniting and reducing the properties of CuO, re-adding medicines halfway, testing pure, igniting and reducing CuO, the experimental results are not good, the success rate is low, and the students’ chemistry is affected.